Adjustments For 4195Ka Series Controllers; Manual Set Point Adjustment; Remote Set Point (Suffix Letter M) Adjustment; Proportional Band Adjustment (Pb Adj) - Emerson Fisher KC Series Instruction Manual

Instruction Manual
Form 5207
April 2007
W6832 / IL
Section 3
4195KA Series Proportional-Only
Controllers
Adjustments for 4195KA Series
Controllers
This section includes descriptions of adjustments
and procedures for prestartup, startup, and
calibration. Adjustment locations are shown in
figures 3-1 and 3-3. To better understand the
adjustments and overall controller operation, refer to
the Principle of Operation section and the schematic
diagrams in figures 3-4 and 3-5. Unless otherwise
noted, key numbers given in this section are found in
figure 7-1.

Manual Set Point Adjustment

Adjust the set point by moving the set point indicator
until the line on the set point indicator is over the
desired value on the process pressure scale. Move
the indicator to the right to increase the set point and
to the left to decrease it. Adjusting the set point does
not affect the proportional band setting.
4195KA, KB, KC, and KS Controllers
Figure 3-1. 4195KA Series Controller Adjustment Locations
W3679 / IL
SET POINT
AUTO/MANUAL STATION
INDICATOR
(SUFFIX LETTER E)
PROCESS POINTER
PROPORTIONAL BAND
ADJUSTMENT
PROPORTIONAL BAND
INDICATOR COVER
OUTPUT PRESSURE
GAUGE
Remote Set Point (suffix letter M)
Adjustment
CAUTION
Do not manually move the set point
indicator on controllers with remote
set point. Manually moving the set
point indicator could damage the
controller.
If the controller is equipped with remote set point
(suffix letter M), vary the remote set point pressure
to change the set point. Increase the pressure to
increase the set point, and decrease the pressure to
decrease the set point.

Proportional Band Adjustment (PB ADJ)

The proportional band determines the controller
output sensitivity. The proportional band adjustment
is marked in percentages of process pressure
required to drive the controller from zero output to
full output.
METAL BALL
SWITCHING ZONE
INDICATOR
LOADER KNOB
AUTO/MANUAL
SWITCH
3-1